Gas generator

Abstract

A gas generator comprising a first cup case 3 packing therein gas generant 2 to generate gas by the burning of it, a squib 5 having a second cup case E arranged in an inside of the first cup case 3 and containing an ignition charge D, a squib case 7 having a hole 20 and covering the second cup case E, and a holder 6 to hold the squib case 7 and second cut case E by crimping, wherein the holder 6 has holes 13, 14 for allowing passage of electrode pins 11, 12 of the squib 5 , one for each of the electrode pins 11, 12.

1. A gas generator comprising a first cup case packing therein gas generant to generate gas by burning, a squib having a second cup case arranged in an inside of the first cup case and containing an ignition charge, a squib case having a hole and covering the second cup case, and a holder made of metal to hold the squib case and second cup case by crimping,
 wherein the holder has first and second holes for allowing passage of electrode pins of the squib, one for each of the electrode pins; 
 wherein the squib contains the ignition charge, a closing plug is inserted in and fitted in the second cup case to house the ignition charge in the second cup case, the closing plug is mounted in the holder, and the electrode pins of two metal rods extend through the closing plug and project outward therefrom, and 
 wherein root portions of the respective electrode pins projecting from the closing plug are covered with respective projecting portions integrally formed with the closing plug, and the projecting portions are inserted in the holes, respectively. 
 
   
   
     2. The gas generator according to  claim 1 , wherein an area of the holes is in range of two times to ten times as large as a cross-section area of the electrode pin.